Machine for producing small strips of fibrous material



G. TURK.

MACHINE FOR PRODUCING SMALL STRIPS 0F FIBROUS MATERIAL.

APPLICATION FILED MAY 5| I919.

Patented Nov. 1, 1921.

i a p s T r s3 are THE o'HEMioALroU vDArIoii, me, A coaromirioiv or DELAWARE. :v

' MACHINE roit'rnonuc i e SMALL srmrs or rieaoiisiiiarnaihr.

' r Application filed May 5,

To all'whomz'tmag concern: 1

Be it known'that I, GUs'rAv Tiiii i, SIIbJGCt of Germany, residing at Meiningen,-Rohrerstrasse l6, Germanyfhave invented certain new and useful Improvements in a "Machine for Producing Small Strips of Fibrous; terial, of which the following is a specification. i

In manufacturing paper, difiicultieshave frequently arisen, when narrow strips of paper were to be produced, the width of which being predetermined; directly when being formed from the paper pulp. These difliculties are particularly present, when the paper pulp contains long fibers orcrisp material. The attempt has been made, here tofore, to form the strips on thesieve cloth of the paper machine, by, provid ng the sieve cloth with impermeable *strips or ledges to prevent the paper pulp from adhering to the sieve at such places. In cylinder paper machines such CllVlSlOIl can be carried out without difiiculty, however, in web paper machines the difliculties are so great that it appears impracticable to provide the metal sieve cloth with such strips. Though these difficulties are not present with cylinder paper machines, yet with these it is only possible to cause the material to adhere tothe sieve surface, when specially prepared for this purpose.

In any case, particularly when the impervious strips (are fastened to the sieve in a defective manner, itwill be impossible to produce 'paperor other fibrous strips having smooth and even edges. Theedges of the strips have rather a tendency to combine with the neighboring strips, particularly,

when it is desired to utilize the full breadth of the machine as much as possible and for this reason the impervious parts are made comparatively narrow. I

It has further been attempted to divide the paper strips from one another by directing' small streams of water against the sieve, however, these trials have not proved to be successful.

According to the present invention the above mentioned difficulties are avoided by the aid 'of a number of thin disks or rings, which are placed on edge on the metal sieve, thus forming a sort of trough, in which the sieve forms the bottom which is thereby divided into separate strips. The paper pulp can only settle in the intermediate spaces on Specification of Letters Patent. Patented Nev. i, 1921.

191a. zs rialno. 294,994.

the sieve between the disks, as it is 'continu ously moving forward. The paper sieve leaves thesaid disks furnished with thefiber strips, which have very even and .smooth edges. I

Figure 1 showsdiagrammatically a sectional elevation of a machine constructed according to the present invention, is a longitudinal section of this machine.

' In the construction shown the disks or rings a, which rest on the sieve cloth 6 borderthe pulp strips 0, and correspondin manber to the number of strips to be produced. They are held together by long bolts (Z and are held apart by distance pieces f, the thickness of which corresponds to the width of the strips to be produced. 1

The cylinder, which is formed by the disks being bolted together is provided with end walls g, which determine the breadth of the complete groupv of strips. The composite cylinder requires no special driving shaft, because it rests on rolls of the metal sieve 7) and is rotated by the forward movement of the sieve.

Within the metal sieve an impermeable endless cloth is arranged, which can be made of any impervious material, such as leather, parchment-paper, oil-cloth and so on and which prevents the escapement of the liquid. The endless cloth 8 runs over the guiding rolls 7L about the breast roll 2' and about an adjustable guiding roll 76. By adjusting the roll 76, the cloth 8 can be shortened or lengthened to change the length 3 that is to say the time during which the sieve after leaving the leather clot-h .9 travels within the liquid, whereby the thickness of'the paper strips produced is determined.

The pulp is fed between the disks preferably by a shoot m, which is open on one side. The manner, in which the pulp is fed depends on the shape of the disks a. The pulp fed settles between the disks aon the metal sieve 7), which moves in the direction shown by the arrow, when passing the length y. On the way 00, between the edge of the liquid and the line, in which the disks a rest against the couch-roll n, the newly formed strips are partly deprived of their water, by which the adhesion on the metal sieve-is favored. In passing over the couchroll, which as is usual in paper machines, is adapted to suck off moisture, the strips are deprived of their water content to a greater deand Fig. 2 v

comprising an endless traveling sieve, an impermeable apron within the sieve and in contact with the sieve for part of its length, a plurality of disks, resting on the sieve and means for'feeding pulp between the disks.

2. Machine for manufacturing narrow strips of fiber from paper pulp and the like, comprising an endlesstraveling sieve, an impermeable apron, a plurality of disks resting on the sieve, said impermeable apron-being in contact with the sieve for a section of that part on which the disks rest, and means for feeding pulp between the disks.

3. Machine for manufacturing narrow strips of fiber from paper pulp and the like, comprising an endless traveling sieve, an impermeable apron within the sieveand in contact with. the sieve for part of its length, a plurality of disks resting on the sieve to form troughs, and means for feeding pulp between the disks.

4. A machine for manufacturing narrow strips of paper from paper pulp and the like,

comprising the combination of an endless permeable conveyer, an impermeable apron in contact with said conveyer for part'of its travel, a plurality of disks resting on said conveyer, and means for feeding pulp between said disks.

- 5. A machine for manufacturing narrow strips of paper from paper pulp and the like,

comprising permeable conveying means,

means for preventing the escape of liquid through said conveying means and incontact with said conveying means for part of its travel, means for determining the width of the paper strips, said means resting upon said conveyingmeans, and means for feeding pulp between said determining means.

6. A machine for manufacturing narrow strips of paper from paper pulp and the like, comprising an endless permeable conveyer, an impermeable apron in contact with said conveyor for a part of its travel, means for determining the width of the fiber strips, said means resting upon said permeable conveying means, and means for feeding pulp between said determinin means. i

, U STAV TURK. Witnesses: i

HERMANN LAUGHAMMER, RICHARD KEHL. 

